First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
This forum is disabled, please visit
https://forum.opencv.org
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
date
activity ▲
answers
votes
29,830 questions
Tagged
291
views
1
answer
no
votes
2020-11-19 16:49:29 -0600
crackwitz
I do downhole test using CCTV. Is there any open codes of the OpenCV I can use for a digital image stitching?
image
stitching
downhole
378
views
1
answer
no
votes
2020-11-19 16:58:13 -0600
crackwitz
Blockwise PCA & Sobel seem to be way off for ridge angle detection
finger
fingertip
sobel
ridge
5k
views
2
answers
no
votes
2020-11-19 20:07:38 -0600
crackwitz
How to Darken Faint/Dim Gray Text
grayText
darkerText
darkenText
ScannedDoc
781
views
1
answer
no
votes
2020-11-19 20:13:19 -0600
crackwitz
Is there a way to select a specific web cam from USB hub on a Mac or Windows?
multi-camera
camera
2k
views
1
answer
no
votes
2020-11-19 20:23:12 -0600
crackwitz
How to calculate Optical Flow magnitude?
opticalflow
python
calcOpticalFlow
6k
views
4
answers
no
votes
2020-11-20 01:41:09 -0600
dkurt
Android OpenCV + camera is just showing black screen
android
opencv
camera
2k
views
no
answers
-2
votes
2020-11-20 02:14:39 -0600
kilwa
calculating the area dimension in image
python#opencv
1k
views
1
answer
no
votes
2020-11-20 18:53:46 -0600
sjhalayka
About Using OpenCV in Unreal Engine 4 [closed]
hololens
image-recognition
image-data
augmentedReality
unreal
Pattern_recognition
433
views
1
answer
no
votes
2020-11-21 02:13:53 -0600
berak
Result of My Cascade Training is Bad
opencv#traincascade
2k
views
no
answers
no
votes
2020-11-21 04:35:54 -0600
kani
How to draw contour for a document in OpenCV.js?
javascript
contours
drawContours
5k
views
1
answer
-1
votes
2020-11-21 09:49:33 -0600
berak
Hello, I am working on the image face recognition project. I am getting error as follows. Please guide.
assertion_failed
742
views
1
answer
no
votes
2020-11-21 10:03:42 -0600
berak
Can I use OpenCV Android for commercial sales [2020]?
android
Licence
commercial
6k
views
no
answers
-2
votes
2020-11-21 14:28:23 -0600
berak
cv2.error: OpenCV(4.4.0)error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor', 14errors module cv2
cv2
python
assertionerror
facial_expression
2k
views
no
answers
no
votes
2020-11-21 15:35:02 -0600
Ghetto82
RaspberryPI & OpenCV + Yolo: AttributeError: module 'cv2' has no attribute 'dnn'
RaspberryPi
yolo
opencv
dnn
objectdetection
1k
views
no
answers
no
votes
2020-11-22 09:17:03 -0600
sachet12345
Merging lines given end points
linesegmentdetector
2k
views
no
answers
no
votes
2020-11-22 10:53:01 -0600
Joanne
dnn with custom layer: Assertion failed !empty() in function 'forward'
dnn
layer
empty
dnn.forward
1k
views
1
answer
no
votes
2020-11-22 20:03:37 -0600
sunitha premjee
Didn't find class "android.view.JavaCameraView" on path: DexPathList[[zip file "==/base.apk"],nativeLibraryDirectories=[==/lib/arm64, ==/base.apk!/lib/arm64-v8a, /system/lib64]]
android
opencv
2k
views
no
answers
no
votes
2020-11-23 02:49:36 -0600
genzy9
Demosaicing c++
demosaicing
debayer
230
views
no
answers
no
votes
2020-11-23 04:37:45 -0600
Antrac1t
reading CPU data
OCR
neural_network
602
views
no
answers
no
votes
2020-11-23 05:31:46 -0600
Ahmed
Cut faraway objects based on depth map
java
843
views
no
answers
no
votes
2020-11-23 05:49:59 -0600
smitra
Perspective warping using QR codes as anchors in the image
cv2.warpPerspective
qrcode
640
views
no
answers
no
votes
2020-11-24 10:44:25 -0600
daniel_vdc
Unable to open or export written video
cv2
opencv
python
295
views
no
answers
no
votes
2020-11-24 12:09:28 -0600
mael15
c++ heap error without using the library?! [closed]
heap
corruption
error
255
views
no
answers
no
votes
2020-11-24 13:46:38 -0600
berak
heap errors without using anything from the lib
heap
error
373
views
no
answers
-2
votes
2020-11-24 21:33:38 -0600
gentle_rain
How can I segment text from images with complex backgrounds?
image-segmentation
OCR
computer-vision
749
views
no
answers
no
votes
2020-11-24 22:57:47 -0600
Shabana
OpenCV with android not detecting image blur [closed]
android
opencv
670
views
no
answers
no
votes
2020-11-25 09:20:23 -0600
DanKutz
Adding subtitles from .srt file C++ [closed]
c++
opencv
2k
views
1
answer
no
votes
2020-11-25 11:11:59 -0600
crackwitz
How do I read raw RGB data with Python?
python
raw
817
views
1
answer
no
votes
2020-11-25 11:55:52 -0600
crackwitz
Technique to find corresponding objects across stereo views
stereo_match
stereo-calibration
3dreconstruction
3d-image
378
views
no
answers
-1
votes
2020-11-25 15:49:52 -0600
serge
How to know the exact location of an object in an image after detecting it using haar-cascade?
robotics
planning
« previous
1
...
991
992
993
994
995
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×6
android
×4
python
×4
camera
×2
cv2
×2
dnn
×2
error
×2
heap
×2
OCR
×2
3d-image
×1
3dreconstruction
×1
assertionerror
×1
assertion_failed
×1
augmentedReality
×1
c++
×1
calcOpticalFlow
×1
commercial
×1
computer-vision
×1
contours
×1
corruption
×1
cv2.warpPerspective
×1
darkenText
×1
darkerText
×1
debayer
×1
demosaicing
×1
dnn.forward
×1
downhole
×1
drawContours
×1
empty
×1
facial_expression
×1
finger
×1
fingertip
×1
grayText
×1
hololens
×1
image
×1
image-data
×1
image-recognition
×1
image-segmentation
×1
java
×1
javascript
×1
layer
×1
Licence
×1
linesegmentdetector
×1
multi-camera
×1
neural_network
×1
objectdetection
×1
opencv#traincascade
×1
opticalflow
×1
Pattern_recognition
×1
planning
×1
Copyright
OpenCV foundation
, 2012-2018. Content on this site is licensed under a
Creative Commons Attribution Share Alike 3.0
license.
Powered by Askbot version 0.10.2
Please note: OpenCV answers requires javascript to work properly, please enable javascript in your browser,
here is how
dummy
×
